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Signal

End-to-end encrypted messaging and calls, run by a non-profit.

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Official source: signal.orgLast verified: awaiting review · How we check softwareDeveloper: Signal Foundation

What is Signal?

End-to-end encrypted messaging and calls, run by a non-profit.

Key features

  • Encrypted messages, calls and video
  • Disappearing messages
  • Usernames so you can hide your number

Who should use Signal?

Supported platforms

Pricing & licence

Open Source Free and open source

Open source: the source code is public, so anyone can inspect it, and it's free to use.

Prices change, so check signal.org for current pricing.

Pros & cons

Pros

  • Gold standard for private chat
  • No ads or tracking

Cons

  • Fewer of your contacts may use it

Installation

Windows

Windows · Winget
PS> winget install --id OpenWhisperSystems.Signal --exact --source winget

Install Signal with the rest of your Windows setup

macOS

Mac · Homebrew
$ brew install --cask signal

Install Signal with the rest of your macOS setup

Linux

Linux · Flatpak (any distribution)
$ flatpak install flathub org.signal.Signal

Install Signal with the rest of your Linux setup

Package names were checked against each official package registry, and commands install the same software as the official download. Only run commands you understand.

Alternatives to Signal

  • WhatsAppThe most widely used messaging app, with voice and video calls.View Alternative

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Signal FAQ

Is Signal free?

Free and open source. It's also open source.

Which platforms does Signal support?

Signal is available for Windows, macOS, Linux, Android and iPhone & iPad.

Can I install Signal with Winget?

Yes. Run "winget install --id OpenWhisperSystems.Signal --exact --source winget" in PowerShell or Windows Terminal. The package ID was checked against Microsoft's official Winget repository.

Can I install Signal with Homebrew?

Yes. Run "brew install --cask signal" in Terminal.

What are the alternatives to Signal?

Common alternatives include WhatsApp. See the full list of Signal alternatives for how they differ.

Where can I download Signal safely?

From the official website, signal.org, or from Google Play and the App Store. Aptorise links only to official sources and never hosts installers.